Antenatal Micronutrients and the Mitochondrial Genome: A Glimpse of Future Nutritional Investigation

Autor: Sun Eun Lee, Keith P. West, Michael Fenech
Přispěvatelé: Lee, Sun Eun, Fenech, Michael F, West, Keith P
Rok vydání: 2019
Předmět:
Zdroj: The Journal of Nutrition
ISSN: 1541-6100
Popis: Background The Supplementation with Multiple Micronutrients Intervention Trial (SUMMIT) in Lombok, Indonesia showed that maternal multiple micronutrients (MMN), as compared with iron and folic acid (IFA), reduced fetal loss, early infant mortality, and low birth weight. Mitochondria play a key role during pregnancy by providing maternal metabolic energy for fetal development, but the effects of maternal supplementation during pregnancy on mitochondria are not fully understood. Objective The aim of this study was to assess the impact of MMN supplementation on maternal mitochondrial DNA copy number (mtDNA-CN). Methods We used archived venous blood specimens from pregnant women enrolled in the SUMMIT study. SUMMIT was a cluster-randomized double-blind controlled trial in which midwives were randomly assigned to distribute MMN or IFA to pregnant women. In this study, we selected 108 sets of paired baseline and postsupplementation samples (MMN = 54 and IFA = 54). Maternal mtDNA-CN was determined by real-time quantitative polymerase chain reaction in baseline and postsupplementation specimens. The association between supplementation type and change in mtDNA-CN was performed using rank-based estimation for linear models. Results In both groups, maternal mtDNA-CN at postsupplementation was significantly elevated compared with baseline (P
Databáze: OpenAIRE